as appropriate for platforms that don't have autotools support

Simplify check for NEED_MALLOC_H, and make more explicit that NEED_MALLOC_H shall be defined if <malloc.h> header file must be included even when including <stdlib.h>.

HAVE_GETNAMEINFO, GETNAMEINFO_QUAL_ARG1, GETNAMEINFO_TYPE_ARG1, GETNAMEINFO_TYPE_ARG2, GETNAMEINFO_TYPE_ARG46, GETNAMEINFO_TYPE_ARG7

HAVE_RECV, RECV_TYPE_ARG1, RECV_TYPE_ARG2, RECV_TYPE_ARG3, RECV_TYPE_ARG4, RECV_TYPE_RETV

HAVE_SEND, SEND_TYPE_ARG1, SEND_TYPE_ARG2, SEND_TYPE_ARG3, SEND_TYPE_ARG4, SEND_TYPE_RETV

HAVE_PROCESS_H added for all except scc.

Change OS name. Fix header guard.

to make it more like other OS strings

This works by magicly starting up a new thread that can be killed when the
timeout is reached. testtesttest!

of MSVC

We *really* need these sorted out. I'd prefer to have them all removed and
the actual code corrected instead of just diabling the warnings and pretending
that they don't exist.

of compiler warnings, but I guess they make the life somewhat easier to live
for a ms dude compiling this. For a rainy day: remove the pragmas and correct
the source code that cause the warnings!

win32 systems